Uploading new media to existing posts/pages backdates file location

Description

Using WP 2.8.4, when uploading new media files to a page or post that has already been published, the new file is added in the /UPLOAD_DIR/year/month/ directory that corresponds to the original page/post publication date, rather than the file upload date.

Also, the correct file-upload-date-based directory is created (if it does not already exist), but the file is still placed in the older incorrect directory.

Example: Assume the following...

On /wp-admin/options-misc.php:

"Store uploads in this folder" (referred to above as UPLOAD_DIR) is set to "wp-content/uploads" or any other location, such as "files"

"Organize my uploads into month- and year-based folders" is checked

On an existing Page:

Page has a published date of 3/1/2008

File a_test_file.jpg is uploaded on 9/1/2009

UPLOAD_DIR is set to "wp-content/uploads", has 777 permissions, and contains no subdirectories or files

Even if this is the new standard WP attachment behavior, the upload should not be creating an empty directory for the current year+month.

Using the publication date rather than the file upload date might make sense for a timestamped Post, but it doesn't make sense for years-old Pages (in which the pub date is largely irrelevant).

Could this be turned into 2 tickets? One is a bug - the empty directory being created. Two is a feature request - it'd be great if under Media Settings you could choose whether you wanted media uploads backdated to the publication date of the post/page they're attached to. Could separate out the options, so that you could e.g. backdate on posts but not on pages.